xnu-2782.1.97.tar.gz

[apple/xnu.git] / libsyscall / wrappers / _libc_funcptr.c

diff --git a/libsyscall/wrappers/_libc_funcptr.c b/libsyscall/wrappers/_libc_funcptr.c
index 60fd52142d255657be696066bcdd698ae5956ba4..63eb09ca6e90b54fce5e2985319b363a258e247f 100644 (file)
--- a/libsyscall/wrappers/_libc_funcptr.c
+++ b/libsyscall/wrappers/_libc_funcptr.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010 Apple Inc. All rights reserved.
+ * Copyright (c) 2010-2014 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -26,47 +26,109 @@
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 
-#include <mach/mach.h>
-#include <mach/mach_init.h>
+#include "_libkernel_init.h"
+extern _libkernel_functions_t _libkernel_functions;
+extern void mig_os_release(void* ptr);
 
-extern void (*_libc_set_errno)(int);
-
-static mach_port_t (*_libc_get_reply_port)(void);
-static void (*_libc_set_reply_port)(mach_port_t);
+__attribute__((visibility("hidden")))
+void *
+malloc(size_t size)
+{
+       return _libkernel_functions->malloc(size);
+}
 
-/* 
- * Called at Libsystem initialise time, sets up callbacks we
- * need to get at thread variables inside of Libc
- */
+__attribute__((visibility("hidden")))
 void
-_mig_reply_port_callbacks(mach_port_t (*get)(void), void (*set)(mach_port_t))
+free(void *ptr)
+{
+       return _libkernel_functions->free(ptr);
+}
+
+__attribute__((visibility("hidden")))
+void *
+realloc(void *ptr, size_t size)
 {
-       _libc_get_reply_port = get;
-       _libc_set_reply_port = set;
+       return _libkernel_functions->realloc(ptr, size);
 }
 
-mach_port_t _mig_get_reply_port(void) __attribute__((visibility("hidden")));
-mach_port_t
-_mig_get_reply_port()
+__attribute__((visibility("hidden")))
+void *
+reallocf(void *ptr, size_t size)
 {
-       return _libc_get_reply_port();
+       void *nptr = realloc(ptr, size);
+       if (!nptr && ptr)
+               free(ptr);
+       return (nptr);
 }
 
-void _mig_set_reply_port(mach_port_t port) __attribute__((visibility("hidden")));
+__attribute__((visibility("hidden")))
 void
-_mig_set_reply_port(mach_port_t port)
+_pthread_exit_if_canceled(int error)
+{
+       return _libkernel_functions->_pthread_exit_if_canceled(error);
+}
+
+__attribute__((visibility("hidden")))
+void
+_pthread_set_self(void *ptr __attribute__((__unused__))) {}
+
+__attribute__((visibility("hidden")))
+void
+_pthread_clear_qos_tsd(mach_port_t thread_port)
+{
+       if (_libkernel_functions->version >= 3 &&
+                       _libkernel_functions->pthread_clear_qos_tsd) {
+               return _libkernel_functions->pthread_clear_qos_tsd(thread_port);
+       }
+}
+
+/*
+ * mach/mach.h voucher_mach_msg API
+ */
+
+static const struct _libkernel_voucher_functions
+               _libkernel_voucher_functions_empty;
+static _libkernel_voucher_functions_t _libkernel_voucher_functions =
+               &_libkernel_voucher_functions_empty;
+
+kern_return_t
+__libkernel_voucher_init(_libkernel_voucher_functions_t fns)
+{
+       _libkernel_voucher_functions = fns;
+       return KERN_SUCCESS;
+}
+
+boolean_t
+voucher_mach_msg_set(mach_msg_header_t *msg)
 {
-       _libc_set_reply_port(port);
+       if (_libkernel_voucher_functions->voucher_mach_msg_set) {
+               return _libkernel_voucher_functions->voucher_mach_msg_set(msg);
+       }
+       return 0;
 }
 
-void cthread_set_errno_self(int errno) __attribute__((visibility("hidden")));
 void
-cthread_set_errno_self(int errno)
+voucher_mach_msg_clear(mach_msg_header_t *msg)
 {
-       _libc_set_errno(errno);
+       if (_libkernel_voucher_functions->voucher_mach_msg_clear) {
+               return _libkernel_voucher_functions->voucher_mach_msg_clear(msg);
+       }
 }
 
+voucher_mach_msg_state_t
+voucher_mach_msg_adopt(mach_msg_header_t *msg)
+{
+       if (_libkernel_voucher_functions->voucher_mach_msg_adopt) {
+               return _libkernel_voucher_functions->voucher_mach_msg_adopt(msg);
+       }
+       return VOUCHER_MACH_MSG_STATE_UNCHANGED;
+}
 
-void _pthread_set_self(void* ptr) __attribute__((visibility("hidden")));
 void
-_pthread_set_self(void* ptr) {}
+voucher_mach_msg_revert(voucher_mach_msg_state_t state)
+{
+       if (_libkernel_voucher_functions->voucher_mach_msg_revert) {
+               return _libkernel_voucher_functions->voucher_mach_msg_revert(state);
+       }
+}
+